<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <title>生日提醒</title>
    <style>
        body {
            font-family: "Microsoft YaHei", Arial, sans-serif;
            line-height: 1.6;
            color: #333;
            background-color: #f0f2f5;
            margin: 0;
            padding: 40px 20px;
        }
        .container {
            max-width: 600px;
            margin: 0 auto;
            background-color: #ffffff;
            border-radius: 12px;
            padding: 32px;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
        }
        .header {
            color: #ff8c00;
            font-size: 28px;
            font-weight: bold;
            text-align: center;
            margin-bottom: 24px;
        }
        
   @keyframes bounce {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-10px); }
        }
        .content {
            text-align: center;
            margin: 32px 0;
            font-size: 18px;
            line-height: 1.8;
        }
        .content p {
            margin: 12px 0;
        }
        .highlight {
            color: #ff8c00;
            font-weight: bold;
        }
        .footer {
            font-size: 13px;
            color: #666;
            text-align: center;
            border-top: 1px solid #eee;
            padding-top: 20px;
            margin-top: 32px;
        }
    </style>
</head>
<body>
    <div class="container">
        <div class="header">
            🎉 生日提醒 🎉
        </div>
        <div class="content">
            <p>今天是 <span class="highlight">{{userName}}</span> 的生日！</p>
            <p>祝她生日快乐，心想事成！</p>
            <p>愿这一天充满欢乐与祝福 ✨</p>
        </div>
        <div class="footer">
            <p>这是一封自动发送的邮件，请勿直接回复。</p>
        </div>
    </div>
</body>
</html>